WZZG RNA4872 Needle roller bearing 390*440*80 mm (1 PC) solid collar needle roller bearing without inner ring
Model: RNA4872
Type: needle bearing with inner ring
Inner diameter: 390 mm
Outer diameter: 440 mm
Thickness: 80 mm
Material: bearing steel
Quantity: 1 piece
Needle Roller Bearings Without Inner Ring
The needle roller bearing without inner ring is suitable for the parts of which the radial size is limited. Because of no inner ring, the surface of shaft journal fitted with it is acted directly as rolling surface. It is requested that the surface hardness be no less than HRC60, surface roughness, no more than 0.63μm. This kind of bearing does not limit the axial shift of shaft and housing and has high limiting rotational speed. Model NA, NKI Needle Roller Bearings With Inner Ring
The inner ring has no shoulder in this bearing. For this purpose, the inner ring, outer ring, complete set of needles and cage can be mounted respectively. This bearing does not limit the axial shift of shaft and outer housing. Since the cage separates the needles so as to reduce friction. It can be used for the parts with high rotational speed.
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Bearings can be bought online and can be ordered in stock (large wholesale is supported). If you
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Estimated delivery time
Orders are dispatched within 48 hours of payment. (Customized products will be sent according
to the agreed time)
